I need to know the difference? between the b18a1, and the b18b1... I am running the b18b1 right now "ls/vtec" but what's the diff. with the a1? will it work in a 96 civic hatch?

 

a1 is 90-91 teg, they have smaller cams which doesnt matter with lsvtec. It will work just fine, externally the same as b18b.

 

are you sure! because i don't wanna get a b18a1 and not be able to use it for somereason?

 

sup gumball ill vouch that boostn420 is right about the block. the only difference is that the coolant temp switch is located on the back of the a1. the temp switch on the b1 is located on the thermostat housing. just make sure you use the b1's thermostat housing/tempswitch/and tube that routes to the water pump.

 

alright guys, thanx.

 

The B18A has smaller intake ports as well.

 

Aren't b18a's obd0 while b18b's are obd1-2?

 

90-91 B18a's are OBD0, 92-93 B18a's are OBD1, B18b's are OBD1 and 2
HTH
chris

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NCchris &raquo;</TD></TR><TR><TD CLASS="quote">90-91 B18a's are OBD0, 92-93 B18a's are OBD1, B18b's are OBD1 and 2
HTH
chris</TD></TR></TABLE>

correct and for the LS/VTEC stuff this doesn't matter

but for the all motor LS guys it does

 

ok so 90-91 OBD-0 92-93obd1? right ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krazie1 &raquo;</TD></TR><TR><TD CLASS="quote">

correct and for the LS/VTEC stuff this doesn't matter

but for the all motor LS guys it does </TD></TR></TABLE>

hahaha that was pretty funny i like that. not to bash on the LS guys.